A Computer-Aided Hydrate Management System

Authors
Databa Lawson-Jack (Offshore Technology Institute, ETF Gas Engineering Building, University of Port Harcourt, Port Harcourt, Nigeria) | Toyin Odutola (Department of Petroleum and Gas Engineering, University of Port Harcourt, Port Harcourt, Nigeria) | Ogbonda Douglas Chukwu (Department of Electrical Electronics Engineering Technology, Port Harcourt Polytechnic, Port Harcourt, Nigeria)
DOI
https://doi.org/10.2118/198775-MS
Document ID
SPE-198775-MS
Publisher
Society of Petroleum Engineers
Source
SPE Nigeria Annual International Conference and Exhibition, 5-7 August, Lagos, Nigeria
Publication Date
2019
Document Type
Conference Paper
Language
English
ISBN
978-1-61399-691-1
Copyright
2019. Society of Petroleum Engineers
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In this study, a computer-aided system for effective hydrate management is presented. A flowchart was developed to suggest possible intervention approaches to follow in the event that hydrates are restricting flow in flowlines. Using VBA® in Excel, a worksheet was developed to serve as a direct means of proposing an intervention approach to adopt after confirming the cause(s) of hydrate formation in the flowline that is monitored. The worksheet created suggests intervention approaches in a matter of seconds after a series of prompts to input the identified causative agents. The main causative agents considered were hydrate formation temperature (HFT), hydrate formation pressure (HFP) and Sufficient Gas/Water. Six scenarios of causative agent occurrences were considered. Scenario 1 was a combination of HFT, HFP and sufficient gas/water, the proposed intervention was to depressurize, heat flowline, carry out chemical inhibition and dehydrate. Scenario 2 was a combination of HFP and HFT, the intervention proposed was to depressurize, heat flowline and carry out inhibition. Scenario 3 was HFP only, the intervention strategy proposed was to depressurize and carry out chemical inhibition. Scenario 4 was a combination of HFT and sufficient gas/water, the proposed intervention was to heat flowline, carry out chemical inhibition and dehydrate. Scenario 5 was HFT only, the proposed intervention strategy was to heat flowline, carry out chemical inhibition. Scenario 6 was a combination of no HFP, HFT or sufficient gas/water, the proposed intervention was that the causative elements be checked again since hydrate presence in the flowline had been previously confirmed.

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Amin, A.,Smedstad, E., and Riding, M. (2004). Role of Surveillance in Improving Subsea Productivity. In SPE Annual Technical Conference and Exhibition, Houston, Texas. Society of Petroleum Engineers.

Balson, T. H. A.,Craddock, H. A.,Dunlop, J.,Frampton, H.,Payne, G., and Reid, P. (2002). The Development of Advanced Kinetic Hydrate Inhibitors. (C. U. ACS, Ed.) Chemistry in the Oil Industry, VII, 264-276.

Bölkény, I., & Konyha, J. (2017). Prevention of Hydrate Formation on Gas Well. Research Institute of Applied Earth Sciences, University of Miskolc, 1-8.

Borden, K. (2014). Flow Assurance: Hydrates and Paraffin Management. Oil and Gas Facilities, 3(01), 29-33.

Canon, J. M.,Yau, S., and Catheya, T. (2016). Key Performance Indicator System for Deepwater Flow Assurance Operations. In Offshore Technology Conference. Offshore Technology Conference (OTC), Texas.

Fuobiri, F. (2017). Flow Assurance Definition and Main Objectives. In Course Material on Flow Assurance. Koasha Engineering Company Limited.

Gibson Applied Technology and Engineering, Inc. (GATE), (2012). Hydrates: Prediction, Mitigation and Remediation Techniques. Retrieved September 12, 2017, from Gate Inc: https://www.gateinc.com/gatekeeper/gat2004-gkp-2012-02

Gould, M. (2017). Keys to Maintaining Blockage-Free Subsea Tie. Society of Underwater Technology. Texas: Stress Engineering Services Inc. Retrieved October 12, 2017, from http://www.suthouston.com/event/Keys-to-Maintaining-Blockage-Free-Subsea-Tiebacks-Houston-Texas/636293300683670955

Guo, B.,Song, S.,Ghalambor, A., and Lin, T. (2013). Pipeline Commissioning and Operations. In Offshore Pipelines: Design, Installation, and Maintenance (pp. 190-192). Gulf Professional Publishing.

Hosseini, S. A., and Khalilian, A. J. (2012). Considerations in designing multiphase flow lines. Pipeline & Gas Journal, 239(8).

Jamaly, M. (2014). Flowline Integrity Management Plan. Imperial.

Kelland, M. A. (2006). History of the development of low dosage hydrate inhibitors. Energy & fuels, 20(3), 825-847.

Kim, N. R.,Ribeiro, P. R., & Bonet, E. J. (2008). Study of hydrates in Drilling Operations: A Review. Brazilian Journal of Petroleum and Gas, 1(2).

Moore, J. B. (1986). Oilfield surveillance with personal computers. Journal of Petroleum Technology, 38(06), 665-668.

Patel, Z. D., and Russum, J. (2010). Chemical inhibition of gas hydrates in deepwater production systems. Offshore, 70(6).

Sloan, D. (1998). Hydrate Prediction Program: HYDOFF. Hydrate Engineering Handbook. Golden, Colorado.

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